cipuxpasswd: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/cipuxpasswd - from package: cipux-passwd

You may install the required package with command apt-get install {package}

Error in other languages:
cipuxpasswd: bevel nie gevind nie
cipuxpasswd: comandă negăsită
cipuxpasswd: comando não encontrado
cipuxpasswd: commande introuvable
cipuxpasswd: command not found
cipuxpasswd: käsku ei ole
cipuxpasswd: không tìm thấy lệnh
cipuxpasswd: komanda nerasta
cipuxpasswd: Kommando nicht gefunden.
cipuxpasswd: kommandot finns inte
cipuxpasswd: komut yok
cipuxpasswd: nie znaleziono polecenia
cipuxpasswd: níor aimsíodh an t-ordú
cipuxpasswd: no se encontró la orden
cipuxpasswd: no s'ha trobat l'ordre
cipuxpasswd: opdracht niet gevonden
cipuxpasswd: parancs nem található
cipuxpasswd: perintah tidak ditemukan
cipuxpasswd: príkaz nenájdený
cipuxpasswd: příkaz nenalezen
cipuxpasswd: команда не найдена
cipuxpasswd: командата не е открита
cipuxpasswd: 命令找不到
cipuxpasswd: コマンドが見つかりません